* {
    padding: 0;
    margin: 0;
}

.hide {
    display: none !important;
}

.alert {
    width: 400px;
    height: 200px;
    padding: 0 10px;
    border: 1px solid #666;
    border-radius: 4px;
    font-size: 14px;
    background-color: #fff;
    position: fixed;
    left: 50%;
    top: 50%;
    z-index: 999;
    transform: translate(-50%, -50%);
    box-shadow: 1px 1px 2px 1px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
}

.alert .alert-title {
    height: 40px;
    line-height: 40px;
}

.alert .alert-content {
    flex: 1;
}

.alert .alert-footer {
    height: 40px;
    line-height: 40px;
    text-align: right;
}

.alert .alert-footer .alert-confirm {
    padding: 3px 5px;
}